QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
1/21
P
OWER
S
UPPLY
■
AC 100-240V Wide-range Input
■
Efficiency up to 90%
■
Width only 32mm
■
150% Peak Load Capability
■
DC Input from 88 to 375Vdc
■
Short-term Operation from 60Vac to 300Vac
■
Full Power Between -25°C and +60°C
■
Quick-connect Spring-clamp Terminals
■
3 Year Warranty
1. G
ENERAL
D
ESCRIPTION
2. S
HORT
-
FORM
D
ATA
Output voltage
DC 24V
Adjustment range
24-28V
Output current
3.4A
continuous, 24V
5A
for typ. 4s, 24V
Output power
80W
continuous, 24V
120W
for typ. 4s, 24V
Output ripple
< 50mVpp
20Hz to 20MHz
Input voltage
AC 100-240V
±15%
Mains frequency
50-60Hz
±6%
AC Input current
1.42 / 0.82A
at 120 / 230Vac
Power factor
0.53 / 0.47
at 120 / 230Vac
AC Inrush current
typ. 5 / 10A peak at 120 / 230Vac
DC Input voltage
DC 110-300V
-
-20%/+25%
DC Input current
0.8 / 0.29A
at 110 / 300Vdc
Efficiency
88.7 / 90.0%
at 120 / 230Vac
Losses
10.4 / 9.1W
at 120 / 230Vac
Temperature range -25°C to +70°C
operational
Derating
2W/°C
+60 to +70°C
Hold-up time
typ. 41 / 174ms
at 120 / 230Vac
The most outstanding features of this Dimension Q-
Series DIN-rail power supply are the high efficiency
and the small size, which are achieved by many novel
design details. The Q-Series is part of the Dimension
family, existing alongside the lower featured C-
Series.
With short-term peak power capability of 150% and
built-in large sized output capacitors, these features
help start motors, charge capacitors and absorb
reverse energy and often allow a unit of a lower
wattage class to be used.
High immunity to transients and power surges as
well as low electromagnetic emission makes usage in
nearly every environment possible.
The integrated output power manager, a wide range
input voltage design and the low input inrush
current make installation and usage simple.
Unique quick-connect spring-clamp terminals allow a
safe and fast installation
A large international approval package for a variety
of applications makes this unit suitable for nearly
every situation.
Dimensions 32x124x102mm
WxHxD
3. O
RDER
N
UMBERS
4. M
ARKINGS
QS3.241
24-28V unit
Power Supply
Accessory ZM1.WALL
Wall
mount
bracket
IND. CONT. EQ.
UL 508
UL 60950-1
Class I Div 2
ZM11.SIDE
Side
mount
bracket
YR2.DIODE
Decoupling
module
UF20.241
Buffer
unit
EMC, LVD
GL
Marine
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
2/21
I
NDEX
P
AGE
I
NDEX
P
AGE
1.
General Description ............................................1
2.
Short-form Data ..................................................1
3.
Order Numbers....................................................1
4.
Markings ..............................................................1
5.
AC-Input...............................................................3
6.
Input Inrush Current ...........................................4
7.
DC-Input...............................................................4
8.
Output .................................................................5
9.
Hold-up Time.......................................................7
10.
Efficiency and Power Losses................................7
11.
Functional Diagram.............................................8
12.
Front Side and User Elements.............................8
13.
Terminals and Wiring..........................................9
14.
Reliability .............................................................9
15.
EMC....................................................................10
16.
Environment ......................................................11
17.
Protection Features ...........................................12
18.
Safety .................................................................12
19.
Dielectric Strength ............................................12
20.
Approvals...........................................................13
21.
Fulfilled Standards ............................................13
22.
Used Substances ............................................... 13
23.
Physical Dimensions and Weight ..................... 14
24.
Installation and Operation Instructions .......... 14
25.
Accessory........................................................... 15
26.
Application Notes............................................. 16
26.1.
Repetitive Pulse Loading........................ 16
26.2.
Peak Current Capability ......................... 17
26.3.
Back-feeding Loads ................................ 17
26.4.
Charging of Batteries ............................. 17
26.5.
Output Circuit Breakers ......................... 18
26.6.
External Input Protection....................... 18
26.7.
Parallel Use to Increase Output Power . 19
26.8.
Parallel Use for Redundancy.................. 19
26.9.
Daisy Chaining of Outputs..................... 19
26.10.
Series Operation..................................... 20
26.11.
Inductive and Capacitive Loads ............. 20
26.12.
Operation on Two Phases ...................... 20
26.13.
Use in a Tightly Sealed Enclosure .......... 20
26.14.
Mounting Orientations .......................... 21
I
NTENDED
U
SE
The power supply shall only be installed and put into operation by qualified personnel.
This power supply is designed for installation in an enclosure and is intended for the general use, such as in industrial
control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear
equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life.
T
ERMINOLOGY AND
A
BREVIATIONS
PE and
symbol
PE is the abbreviation for Protective Earth and has the same meaning as the symbol
.
Earth, Ground
This document uses the term “earth” which is the same as the U.S. term “ground”.
T.b.d.
To be defined, value or description will follow later.
AC 230V
A figure displayed with the AC or DC before the value represents a nominal voltage with
standard tolerances (usually ±20%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
As long as not otherwise stated, AC 100V and AC 230V parameters are valid at 50Hz and AC
120V parameters are valid at 60Hz mains frequency.
230Vac
A figure with the unit (Vac) at the end is a momentary figure without any additional
tolerances included.
D
ISCLAIMER
The information presented in this document is believed to be accurate and reliable and may change without notice.
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
3/21
5. AC-I
NPUT
AC
input
nom.
AC 100-240V
wide-range input, TN-, TT-, IT-Mains, see
Fig. 5-1
AC input range
min.
85-276Vac continuous
operation
min.
60-85Vac
full power for 200ms, no damage between 0 and 85Vac
min.
276-300Vac <
500ms
Input
frequency
nom.
50 – 60Hz
±6%
Turn-on
voltage
typ.
61Vac
steady-state value, see
Fig. 5-1
Shut-down
voltage
typ.
58Vac
steady-state value, see
Fig. 5-1
AC 100V
AC 120V
AC 230V
Input
current
typ.
1.67A
1.42A
0.82A
at 24V, 3.4A, see
Fig. 5-3
Power
factor
*)
typ.
0.55
0.53
0.47
at 24V, 3.4A, see
Fig. 5-4
Crest factor **)
typ.
3.33
3.9
3.88
at 24V, 3.4A
Start-up
delay
typ.
355ms 350ms 330ms
see
Fig. 5-2
Rise
time
typ.
6ms
5ms
7ms
0mF, 24V, 3.4A, see
Fig. 5-2
typ.
20ms
20ms
22ms
3.4mF, 24V, 3.4A, see
Fig. 5-2
Turn-on
overshoot
max.
50mV 50mV 50mV
See
Fig. 5-2
*)
The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
**) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.
Fig. 5-1 Input voltage range
Fig. 5-2 Turn-on behavior, definitions
Tur
n
-on
85V
Rated
input range
max.
500ms
V
IN
P
OUT
60V
300Vac
full
power
for
200ms
276V
S
hut
-down
Start-up
delay
Rise
Time
Ov
ershoot
- 5%
Output
Voltage
Intput
Voltage
Fig. 5-3 Input current vs. output load at 24V
Fig. 5-4 Power factor vs. output load at 24V
0.5
1.5
1.0
2.0
2.5
3.0 3.5A
0
0.3
0.6
0.9
1.2
1.5
1.8A
Output Current
Input
Current, typ.
230
Vac
120
Va
c
10
0V
ac
Power
Factor, typ.
0.5
1.0
1.5
2.0
3.5A
0.35
0.4
0.45
0.5
0.55
0.6
Output Current
120V
ac
230Vac
2.5
3.0
100
Vac
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
4/21
6. I
NPUT
I
NRUSH
C
URRENT
An active inrush limitation circuitry limits the input inrush current after turn-on of the input voltage and after short
input voltage interruptions.
The charging current into EMI suppression capacitors is disregarded in the first milliseconds after switch-on.
AC 100V
AC 120V
AC 230V
Inrush
current
max.
6A
peak
7A
peak
13A
peak
-25°C to +70°C
typ.
4.5A
peak
5A
peak
10A
peak
-25°C to +70°C
Inrush
energy
max.
2A
2
s 2A
2
s 2A
2
s
-25°C to +70°C
Fig. 6-1 Input inrush current, typical behavior
Input Current
Input Voltage
Output Voltage
Input:
230Vac
Output:
24V, 3.4A
Ambient: 25°C
Upper curve:
Input current 5A / DIV
Medium curve: Input voltage 500V / DIV
Lower curve:
Output voltage 20V / DIV
Time basis:
100ms / DIV
7. DC-I
NPUT
DC input
nom.
DC 110-300V
DC input range
min.
88-375Vdc
continuous operation
DC input current
typ.
0.8A / 0.29A
110Vdc / 300Vdc, 24V, 3.4A
Turn-on voltage
typ.
61Vdc
steady state value
Shut-down voltage
typ.
47Vdc
steady state value
Fig. 7-1 Wiring for DC Input
Fus
e
+
-
Load
L
N
PE
+
-
Power Supply
AC
DC
Battery
internal
fused
Instructions for DC use:
a)
Use a battery or similar DC source.
b)
Connect +pole to L and –pole to N.
c)
Connect the PE terminal to a earth wire or
to the machine ground.
In case the –pole of the battery is not connected
to earth, use an appropriate fuse to protect the N
terminal.
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
5/21
8. O
UTPUT
Output
voltage
nom.
24V
Adjustment
range
min.
24-28V
guaranteed, multi turn potentiometer
max.
30V
at clockwise end position of potentiometer
Factory
setting
24.1V
±0.2%,
at full load, cold unit
Line
regulation
max.
10mV
60 to 300Vac
Load
regulation
max.
100mV
static value, 0A Æ 3.4A Æ 0A
Ripple and noise voltage
max.
50mVpp
20Hz to 20MHz, 50Ohm
Output
capacitance
typ.
1 500µF
Continuous power capability
Output current
nom.
3.4A
at 24V, see
Fig. 8-1
nom.
3.0A
at 28V, see
Fig. 8-1
Output
power
nom.
80W 24V,
continuous
nom.
84W 28V,
continuous
Short-circuit
current
min.
3.5A
load impedance 250mOhm, see
Fig. 8-1
max.
4.2A
load impedance 250mOhm, see
Fig. 8-1
BonusPower®, short term power capability (up to typ. 4s)
The power supply is designed to support loads with a higher short-term power requirement without damage or
shutdown. The short-term duration is hardware controlled by an output power manager. The BonusPower
®
is
repeatedly available. Detailed information can be found in chapter 26.1 .
Once BonusPower® has been stopped by the output power limiter, a timer disables the next BonusPower® capability.
The recovery timer will start as soon as the output voltage reaches the adjusted value again, which usually happens
after the load has been reduced.
Output
current
nom.
5A
at 24V, see
Fig. 8-1
nom.
4.5A
at 28V, see
Fig. 8-1
Output
power
nom.
120W
24V, short term
nom.
126W
28V, short term
Short-circuit
current
min.
5.2A
load impedance 250mOhm, see
Fig. 8-1
max.
6.0A
load impedance 250mOhm, see
Fig. 8-1
Bonus time
typ.
4s
at 24V, 5A, duration until the output voltage dips,
min
3s see
Fig. 8-2
max.
5s
BonusPower® recovery time
typ.
7s
overload free time to reset power manager, see
Fig. 8-3
Peak current capability (up to several ms)
The power supply can deliver a peak current which is higher than the specified short term current. This helps to start
current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will
be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 26.2.
Peak current voltage dips
typ.
from 24V to 20V
at 6.8A for 10ms
typ.
from 24V to 12.5V
at 13.5A for 2ms
typ.
from 24V to 7.5V
at 13.5A for 5ms
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
6/21
Fig. 8-1 Output voltage vs. output current, typ.
Fig. 8-2 Bonus time vs. output power
Output Voltage
0
0
1
3
4
6A
4
8
12
28V
16
20
24
2
Output Current
5
u
p
t
o
4
s
Adjustment
Range
co
n
tin
u
o
u
s
max
Bonus Time
0
110
120
130
140
150
160%
Output Power
1
2
3
7
4
5
6
8
9
10s
min
Fig. 8-3 BonusPower® recovery time
Power
Demand
Output
Voltage
Limitation by
Power Manager
Bonus Power disabled
Recovery Time
100%
<150%
Bonus
Time
Bonus Power®
is available as soon as power comes on and immediately after the end of an output short circuit.
Fig. 8-4 BonusPower® after input turn-on
Fig. 8-5 BonusPower® after output short
100%
Output
Voltage
Intput
Voltage
Bonus
Power
Output
Power
150%
Short of
Output
100%
Output
Voltage
Bonus
Power
Output
Power
150%
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
7/21
9. H
OLD
-
UP
T
IME
AC 100V
AC 120V
AC 230V
Hold-up Time
typ.
28ms
41ms
174ms
3.4A, 24V, see
Fig. 9-1
typ.
58ms
88ms
347ms
1.7A, 24V, see
Fig. 9-1
Fig. 9-1 Hold-up time vs. input voltage
Fig. 9-2 Shut-down behavior, definitions
10
30
50
70
90
190ms
85
120
155
190
230Vac
Input Voltage
110
130
150
Hold-up
Time
170
24V, 3.4A, min.
24V, 3.4A, typ.
24V, 1.7A, min.
24V, 1.7A, typ.
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Intput
Voltage
Note: At no load, the hold-up time can be up to one minute. The green DC-ok lamp is on during this time.
10. E
FFICIENCY AND
P
OWER
L
OSSES
AC 100V
AC 120V
AC 230V
Efficiency
typ.
87.1% 88.7% 90.0%
3.4A,
24V
Power losses
typ.
12.1W
10.4W
9.1W
3.4A, 24V
typ.
0.9W 1.0W 2.1W
0A,
24V
Fig. 10-1 Efficiency vs. output current at 24V
Fig. 10-2 Losses vs. output current at 24V
Efficiency
0.5
1.0
3.5A
87
88
89
90
Output Current
91
92%
120V
ac
100
Vac
230Vac
86
2.0
3.0
1.5
2.5
Power Losses
0
0.5
3.5A
0
2
4
6
8
10
12W
120Vac
100Vac
1.0
1.5
2.0
2.5
3.0
230Vac
Output Current
Fig. 10-3 Efficiency vs. input voltage, 24V, 3.4A
Fig. 10-4 Losses vs. input voltage, 24V, 3.4A
Efficiency
85
120
155
190
225 260
Vac
86
87
88
89
Input Voltage
90
91
92%
Power Losses
0
3
6
9
12
Input Voltage
15
18W
85
120
155
190
225 260
Vac
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
8/21
11. F
UNCTIONAL
D
IAGRAM
Fig. 11-1 Functional diagram
+
+
-
-
V
OUT
Input Fuse
Input Filter
Input Rectifier
Inrush Limiter
Transient Filter
Output
Voltage
Regulator
Power
Converter
Output
Filter
Output
Voltage
Monitor
Output
Power
Manager
Temper-
ature
Shut-
down
Over-
load
DC
ok
Output
Over-
Voltage
Protection
L
N
12. F
RONT
S
IDE AND
U
SER
E
LEMENTS
Fig. 12-1 Front side
Output voltage potentiometer
(multi turn potentiometer)
Open the flap to tune the output voltage.
Factory setting: 24.1V
DC-ok lamp (green)
Overload lamp (red)
Output Terminals
Quick-connect spring-clamp
terminals, no tools required
+ Positive output
- Negative (return)
output
Dual pins per pole
Overload
lamp
DC-ok
lamp
Normal mode
OFF
ON
80W Continuous power /
120W Peak power
BonusPower
®
mode
OFF
ON
Overload
(V
OUT
< 90%)
ON ON
Overload
(V
OUT
< 80%)
ON OFF
Short-circuit
(V
OUT
= ca. 0V)
ON
OFF
Over- temperature
Intermitted
Intermitted
Input Terminals
Quick-connect spring-clamp
terminals, no tools required
N … Neutral input
L … Line (hot) input
... PE (Protective Earth)
input
No input power
OFF
OFF
Voltage feeded
back to the
output terminals
OFF ON
See chapter 13 “Terminals and
Wiring” to choose appropriate
wire gauges
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
9/21
13. T
ERMINALS AND
W
IRING
Type
Bi-stable,
quick-connect spring clamp terminals. IP20 Finger safe construction.
Suitable for field- and factory installation. Shipped in open position.
Ferrules
allowed, but not required
Pull-out force
10AWG:80N, 12AWG:60N, 14AWG:50N, 16AWG:40N (according to UL486E)
Input terminals
Output terminals
Solid
wire
0.5-6mm
2
0.3-4mm
2
Stranded
wire
0.5-4mm
2
0.3-2.5mm
2
American wire gauge
20-10 AWG
26-12 AWG
Wire stripping length
10mm / 0.4inch
6mm / 0.25inch
Fig. 13-1 Connecting a wire
1. Insert the wire
2. Snap the lever
To disconnect wire: same procedure
vice versa
Instructions:
a)
Use appropriate copper cables that are designed
for an operating temperature of:
60°C for ambient up to 45°C and
75°C for ambient up to 60°C minimum.
b)
Follow national installation codes and
installation regulations!
c)
Ensure that all strands of a stranded wire enter
the terminal connection!
d)
Up to two stranded wires with the same cross
section are permitted in one connection point
(except PE wire).
e)
Do not use the unit without PE connection.
14. R
ELIABILITY
AC 100V
AC 120V
AC 230V
Lifetime expectancy
min.
48 000h
62 000h
79 000h
40°C, 24V, 3.4A
min.
117 000h
126 000h
114 000h
40°C, 24V, 1.7A
min.
136 000h
15 years
15 years
25°C, 24V, 3.4A
MTBF SN 29500, IEC 61709
1 191 000h
1 265 000h
1 451 000h
40°C, 24V, 3.4A
2 061 000h
2 155 000h
2 436 000h
25°C, 24V, 3.4A
MTBF MIL HDBK 217F
581 000h 631
000h 643
000h
40°C, 24V, 3.4A, Ground Benign GB40
812 000h
889 000h
912 000h
25°C, 24V, 3.4A, Ground Benign GB25
The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors.
Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to the capacitor’s
manufacturer specification. The prediction model allows a calculation of up to 15 years from date of shipment.
MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates
reliability of a device. It is the statistical representation of the likelihood of the unit to fail and does not necessarily
represent the life of a product.
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
10/21
15. EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment without any restrictions. CE mark is in conformance with EMC guideline 89/336/EEC and
93/68/EEC and the low-voltage directive (LVD) 73/23/EWG. A detailed EMC Report is available upon request
EMC Immunity
EN 61000-6-1 EN 61000-6-2
Generic standards
Electrostatic discharge
EN 61000-4-2
Contact discharge
Air discharge
8kV
15kV
Criterion A
Criterion A
Electromagnetic RF field
EN 61000-4-3 80MHz-1GHz
10V/m
Criterion
A
Fast transients (Burst)
EN 61000-4-4
Input lines
Output lines
4kV
2kV
Criterion A
Criterion A
Surge voltage on input
EN 61000-4-5
L Æ N
N / L Æ PE
2kV
4kV
Criterion A
Criterion A
Surge voltage on output
EN 61000-4-5
+ Æ -
+ / - Æ PE
500V
500V
Criterion A
Criterion A
Conducted disturbance
EN 61000-4-6
0.15-80MHz
10V
Criterion A
Mains voltage dips
EN 61000-4-11
70% of 100Vac
40% of 100Vac
40% of 100Vac
70Vac, 10ms
40Vac, 100ms
40Vac, 1000ms
Criterion A
Criterion C
Criterion C
Voltage interruptions
EN 61000-4-11
0Vac, 5000ms
Criterion C
Voltage sags
SEMI F47 0200
96Vac, 1000ms
84Vac, 500ms
60Vac, 200ms
Criterion A
Criterion A
Criterion A
Input voltage swells
PULS internal standard
300Vac, 500ms
Criterion A
Powerful transients
VDE 0160
over entire load
range
750V, 1.3ms
Criterion A
Criterions:
A: Power supply shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible. Power supply might shut-down and restarts by itself. No damages or hazards for the power supply occur.
EMC Emission
EN 61000-6-3 and EN 61000-6-4
Generic standards
Conducted emission
EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22
Class B, input lines
EN 55022
Class A, output lines
Radiated emission
EN 55011, EN 55022
Class B
Harmonic input current
EN 61000-3-2
Fulfilled, active PFC
Voltage fluctuations, flicker EN
61000-3-3
Fulfilled
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.
Switching Frequency
65 to 270kHz load and input voltage dependent
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
11/21
16. E
NVIRONMENT
Operational temperature
-25°C to +70°C (-13°F to 158°F)
reduce output power above +60°C
Output de-rating
2W/°C
60-70°C (140°F to 158°F), see
Fig. 16-1
Storage temperature
-40 to +85°C (-40°F to 185°F)
storage and transportation
Humidity
5 to 95% r.H.
IEC 60068-2-30
Do not energize while condensation is present
Vibration sinusoidal
2-17.8Hz: ±1.6mm;
17.8-500Hz: 2g
2 hours / axis
IEC 60068-2-6
Vibration
random
0.5m
2
(s
3
)
2 hours / axis
IEC 60068-2-64
Shock
30g 6ms, 20g 11ms
3 bumps / direction,
18 bumps in total
IEC 60068-2-27
Altitude
0 to 6000m (0 to 20 000ft)
Reduce output power or ambient temperature
above 2000m sea level.
Output de-rating (for altitude)
5W/1000m or 5°C/1000m
above 2000m (6500ft), see
Fig. 16-2
Over-voltage
category
III
EN
50178, altitudes up to 2000m
II
Altitudes from 2000m to 6000m
Degree of pollution
2
EN 50178, not conductive
Fig. 16-1 Output wattage vs. ambient temp.,
Fig. 16-2 Output wattage vs. altitude
Allowed Output
Wattage at 24V
0
-25
0
20
40
70°C
20
40
60
80
100
120W
continuous
60
Ambient Temperature
for typ. 4s
Allowed Output
Wattage at 24V
0
0
2000
4000
6000m
20
40
60
80
100
120W
continuous
Altitude
for typ. 4s
A... Tamb < 60°C
B... Tamb < 50°C
C... Tamb < 40°C
A
B
C
The ambient temperature is defined as the air temperature 2cm below the unit.
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
12/21
17. P
ROTECTION
F
EATURES
Output
protection
Electronically protected against overload, no-load and short-circuits
Output over-voltage protection
typ. 34Vdc
max. 36Vdc
In case of an internal power supply defect, a redundant
circuitry limits the maximum output voltage. The output
shuts-down and automatically attempts to restart.
Output over-current protection Electronically
limited See
Fig. 8-1
Degree of protection
IP 20
EN/IEC 60529
Penetration protection
> 3.5mm
e.g. screws, small parts
Over-temperature
protection
yes
output shut-down with automatic restart
Input transient protection
MOV (Metal Oxide Varistor) and active transient filter
Internal input fuse
T6.3A H.B.C.
not user replaceable
Note: In case of a protection event, audible noise may occur.
18. S
AFETY
Input / output separation
SELV
IEC/EN 60950-1
PELV
EN 60204-1, EN 50178, IEC 60364-4-41
double or reinforced insulation
Class of protection
I
PE (Protective Earth) connection required
Isolation resistance
> 5MOhm
input to output, 500Vdc
PE resistance
< 0.1Ohm
between housing and PE terminal
Touch current (leakage current)
typ. 0.11mA
100Vac, 50Hz, TN mains
typ. 0.15mA
120Vac, 60Hz, TN mains
typ. 0.25mA
230Vac, 50Hz, TN mains
< 0.14mA
110Vac, 50Hz, TN mains
< 0.20mA
132Vac, 60Hz, TN mains
< 0.35mA
264Vac, 50Hz, TN mains
19. D
IELECTRIC
S
TRENGTH
Fig. 19-1 Dielectric strength
A B C
Type test
60s
2500Vac
3000Vac 500Vac
Factory test
5s
2500Vac
2500Vac 500Vac
Field test
5s
2000Vac
2000Vac 500Vac
A
C
N
L
Input
Earth, PE
Output
-
+
B
Type tests and factory tests:
Conducted by the manufacturer. Do not repeat test in field!
Rules for field test:
Use appropriate test equipment which applies the voltage
with a slow ramp! Connect L and N together as well as all
output poles.
The output voltage is floating and has no ohmic connection to ground.
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or
any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in
which a load starts unexpectedly or can not be switched off any more when unnoticed earth faults occur.
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
13/21
20. A
PPROVALS
IEC
60950-1
IECEE
CB SCHEME
CB Scheme,
Information Technology Equipment
UL
508
IND. CONT. EQ.
LISTED E198865 listed for use in U.S.A. (UL 508) and Canada (C22.2
No. 14-95)
Industrial Control Equipment
UL
60950-1
RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-1)
and Canada (C22.2 No. 60950)
Information Technology Equipment, Level 3
UL
1604
RECOGNIZED E246877 recognized for use in U.S.A. (UL 1604) and
Canada (C22.2 No. 213-M1987)
Hazardous Location Class I Div 2 T4 Groups A,B,C,D and
Class I Zone 2 Groups IIA, IIB and IIC
The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations as well as for Class I
Zone 2 Groups IIA, IIB and IIC locations. Substitution of components may impair suitability for
Class I Division 2 environment. Do not disconnect equipment unless power has been switched
off. Wiring must be in accordance with Class I, Division 2 wiring methods of the National
Electrical Code, NFPA 70, and in accordance with other local or national codes.
Marine
GL
ABS
GL (Germanischer Lloyd) classified and ABS (American Bureau for
Shipping) PDA for marine and offshore applications.
Environmental category: C, EMC2
SEMI
F47
SEMI F47-0200 Power Quality Star
Ride-through compliance for semiconductor industry.
Full SEMI range compliance (Input: 120Vac or 208Vac, output: 240W)
21. F
ULFILLED
S
TANDARDS
EN 61558-2-17
Safety of Power Transformers
EN/IEC 60204-1
Safety of Electrical Equipment of Machines
EN/IEC 61131-2
Programmable Controllers
EN 50178
Electronic Equipment in Power Installations
22.
U
SED
S
UBSTANCES
The unit does not release any silicone and is suitable for the use in paint shops.
Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.
Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.
The production material within our production does not include following toxic chemicals:
Polychlorized Biphenyl (PCB), Polychlorized Terphenyl (PCT), Pentachlorophenol (PCP), Polychlorinated naphthalene
(PCN), Polybrom Biphenyll (PBB), Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated
Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO), Cadmium, Asbest, Mercury, Silicia
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
14/21
23. P
HYSICAL
D
IMENSIONS AND
W
EIGHT
Weight
440g / 0.97lb
DIN-Rail
Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
The DIN-rail height must be added to the depth (102mm) to calculate the total required
installation depth.
Electronic files with mechanical data can be downloaded at www.pulspower.com
Fig. 23-1 Front view
Fig. 23-2 Side view
24. I
NSTALLATION AND
O
PERATION
I
NSTRUCTIONS
Mounting Orientation:
Output terminal must be located on top and input terminal on the bottom. For other orientations see section 26.14.
Cooling:
Convection cooled, no forced cooling required. Do not cover ventilation grid (e.g. cable conduits) by more than 30%!
Installation clearances:
40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently
with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.
Risk of electrical shock, fire, personal injury or death!
Do not use the unit without proper earth connection (Protective Earth). Use the pin on the terminal block for earth
connection and not one of the screws on the housing.
Turn power off before working on the power supply. Protect against inadvertent re-powering.
Make sure the wiring is correct by following all local and national codes.
Do not open, modify or repair the unit.
Use caution to prevent any foreign objects from entering into the housing.
Do not use in wet locations or in areas where moisture or condensation can be expected.
Service parts:
The unit does not contain any serviceable parts. The tripping of an internal fuse is caused by an internal defect. If
damage or malfunctioning should occur during operation, immediately turn power off and send unit to factory for
inspection!
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
15/21
25. A
CCESSORY
ZM1.WALL Wall mounting bracket
This bracket is used to mount Dimension units onto a flat surface without utilizing a DIN-Rail. The two aluminum
brackets and the black plastic slider of the unit have to be detached, so that the two steel brackets can be mounted.
Fig. 25-1 ZM1.WALL Wall Mounting Bracket
Fig. 25-2 Assembled Wall Mounting Bracket
ZM11.SIDE Side mounting bracket
This bracket is used to mount Dimension units sideways with or without utilizing a DIN-Rail. The two aluminum
brackets and the black plastic slider of the unit have to be detached, so that the steel brackets can be mounted.
For sideways DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on
the steel bracket.
Fig. 25-3 ZM11.SIDE Side Mounting Bracket
Fig. 25-4 Side Mounting with DIN-rail brackets
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
16/21
26. A
PPLICATION
N
OTES
26.1. R
EPETITIVE
P
ULSE
L
OADING
Typically, a load current is not constant. It varies over time. For pulse load compatibility, following rules must be met:
a)
The pulse power demand must be below 150% of the nominal power.
b)
The duration of the pulse power must be shorter than the allowed Bonus Time. (see output section)
c)
The average (R.M.S.) output current must be below the specified continuous output current.
If the R.M.S. current is higher, the unit might respond with a thermal shut-down after a while. Use the max. duty
cycle curve (
Fig. 26-2
) to check if the average output current is below the nominal current.
d)
For altitudes higher than 2000m reduce the pulse loading (15W/1000m) or the ambient temperature (5°C/1000m)
Fig. 26-1 Repetitive pulse loads, definitions
Fig. 26-2 Max. Duty Cycle Curve
100%
P
PEAK
T
PEAK
P
0
T
0
max.
150%
150%
100
0
0.2
0.4
0.6
0.8
1.0
DutyCycle
110
120
130
140
P
PEAK
P
0
= 10%
P
0
= 50%
P
0
= 75%
P
0
= 100%
P
0
Base load (W)
P
PEAK
Pulse load (above 100%)
T
0
Duration between pulses (s)
T
PEAK
Pulse duration (s)
D
uty
C
ycle
T
0
=
T
peak
-
(D
uty
C
ycle
x T
peak
)
T
peak +
T
0
T
peak
D
uty
C
ycle
=
Utilizing the Max. Duty Cycle Curve:
Example to determine the repetition rate of pulses without dipping of the output voltage:
Parameters of application:
Pulse length is T
PEAK
= 1s
Steady state load P
0
=120W
(= 50% of I
RATED
)
Peak load P
PEAK
= 360W
(= 150% of I
RATED
)
Determining the repetition rate:
1) make a vertical line at P
PEAK
= 150%
2) make a horizontal line where the vertical line crosses the P
0
= 50% curve
3) Read the Max. Duty Cycle from the Duty Cycle-axis (= 0.37)
4) Calculate the min. pause (base load) length T
0
:
D
uty
C
ycle
T
0
=
T
peak
-
(D
uty
C
ycle
x T
peak
)
=
0.37
1s
-
(0.37 x 1s)
= 1.7s
5) Pulse length = 1s, min. pause length = 1.7s
6) Max. repetition rate = pulse length +pause length = 2.7s
More examples for pulse load compatibility:
P
PEAK
P
0
T
PEAK
T
0
P
PEAK
P
0
T
PEAK
T
0
120W 80W 1s >25s
120W 40W
0.1s
>0.16s
120W 0W 1s >1.3s
120W 40W 1s >1.6s
100W 40W 1s >
0,75s
120W 40W 3s >4.9s
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
17/21
26.2. P
EAK
C
URRENT
C
APABILITY
Solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. The inrush current
demand of the pick-up coil is several times higher than the steady state current and usually exceeds the nominal
output current (including the Bonus Power
®
) The same situation applies, when starting a capacitive load.
Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch
circuit, the fuse needs a certain amount of over-current to trip or to blow. The peak current capability ensures the
safe operation of subsequent circuit breakers.
Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the
power supply can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The following
two examples show typical voltage dips:
Fig. 26-3 Peak load 6.8A for 50ms, typ.
Fig. 26-4 Peak load 13.5A for 5ms, typ.
Output
Voltage
Output
Current
10ms/DIV
24V
0A
6.8A
18.5V
Output
Voltage
Output
Current
1ms/DIV
24V
0A
13.5A
7.5V
Peak load 6.8A (resistive) for 50ms
Output voltage dips from 24V to 18.5V.
Peak load 13.5A (resistive) for 5ms
Output voltage dips from 24V to 7.5V.
26.3. B
ACK
-
FEEDING
L
OADS
Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called
return voltage immunity or resistance against Back- E.M.F. (Electro Magnetic Force).
This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power
supply. It does not matter, whether the power supply is on or off.
The maximum allowed feed back voltage is 35Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 8.
26.4. C
HARGING OF
B
ATTERIES
The power supply can be used for float-charging of lead-acid or maintenance free 24V VRLA batteries.
Instructions for charging batteries:
a)
Set the output voltage, at disconnected load, very precisely to the end-of-charge voltage according to the
expected battery temperature.
End-of-charge voltage
27.8V
27.5V
27.15V
26.8V
Battery
temperature
10°C 20°C 30°C 40°C
b)
Use a 15A or16A circuit breaker (or blocking diode ) between the power supply and the battery.
c)
Ensure that the output current of the power supply is below the allowed charging current of the battery.
d)
Use only matched batteries when putting 12V types in series.
e)
The return current to the power supply is typ. 6.3mA at 25Vdc
when the power supply is switched off (except in
case a blocking diode is utilized).
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
18/21
26.5. O
UTPUT
C
IRCUIT
B
REAKERS
Standard miniature circuit breakers (MCBs) can be used for branch protection. Ensure that the MCB is rated for DC
voltage, too. The following tests show which circuit breakers the power supply typically trips.
Circuit breakers have huge tolerances in their tripping behavior. Therefore, these typical tests can only be used as a
recommendation or for comparing two different power supplies. Furthermore, the loop impedance has a major
influence on whether a breaker trips or not. Two tests were performed, representing typical situations:
Test 1: Short circuit with S1 on the power supply end of the cable (loop impedance approx. 20mOhm)
Fig. 26-5 Branch protectors, test circuit 1
Circuit
Breaker
Power
Supply
AC
DC
+
-
I
Load
+
-
S1
Parameters:
Input voltage:
230Vac, load current:
0A
Tripping time shorter than 5s.
The following circuit breaker tripped during the test:
A- or Z- Characteristic:: equal or smaller 6A
C- Characteristic:
equal or smaller 1A
Test 2: Short circuit with S1 on the load end (additional impedance included; represents longer load wire length).
Fig. 26-6 Branch protectors, test circuit 2
R
Circuit
Breaker
Power
Supply
AC
DC
+
-
I
S1
Load
+
-
Parameters:
Input voltage:
230Vac, load current:
0A
Tripping time shorter than 5s.
The following circuit breaker tripped during the test:
A- or Z- Characteristic::
≤ 6A and R< 180mOhm
C- Characteristic:
≤ 1A and R< 390mOhm
What does this resistance mean in wire length?
0.5mm
2
0.7mm
2
1.0mm
2
1.5mm
2
2.5mm
2
4.0mm
2
180mOhm
10.9m 15.2m 21.7m 32.6m 54.3m 86.9m
220mOhm
6.1m 8.6m 12.3m 18.4m 30.6m 49.0m
Example:
Which wire gauge must be used to trip a Z-Characteristic circuit breaker with a rating of 6A? The load wire length is
21m.
Answer: A 6A Z-Characteristic circuit breaker requires a loop impedance of less than 180mOhm (test results). The wire
length table shows that up to 25.1m wire with a cross section of 2.5mm
2
are below 180mOhm. A wire not smaller
than 2.5mm
2
shall be used.
26.6. E
XTERNAL
I
NPUT
P
ROTECTION
The unit is tested and approved for branch circuits up to 20A. External protection is only required, if the supplying
branch has an ampacity greater than this. In some countries local regulations might apply. Check also local codes and
local requirements.
If an external fuse is necessary or utilized, a minimum value is required to avoid undesired tripping of the fuse.
B-Characteristic
C-Characteristic
Ampacity max.
20A 20A
min.
6A 6A
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
19/21
26.7. P
ARALLEL
U
SE TO
I
NCREASE
O
UTPUT
P
OWER
Power supplies can be paralleled to increase the output power.
Fig. 26-7 Schematic for parallel operation
Instructions for parallel use:
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
a)
Use only power supplies from the same series (Q-Series).
b)
A fuse (or diode) on the output is only required if more than
three units are connected in parallel.
c)
Do not load terminals with more than 25A. Follow wiring
instructions according to chapter 0
d)
Keep an installation clearance of 15mm (left/right) between
two power supplies and avoid installing the power supplies
on top of each other.
26.8. P
ARALLEL
U
SE FOR
R
EDUNDANCY
Power supplies can be paralleled for 1+1 redundancy to gain a higher system availability. Redundant systems require
a certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put
two QS3.241 power supplies in parallel. In case one power supply unit fails, the other one is automatically able to
support the load current without any interruption. This simple way to build a redundant system has two major
disadvantages:
a. The faulty power supply can not be recognized. The green LED will still be on since it is reverse-powered from
the other power supply.
b. It does not cover failures such as an internal short circuit in the secondary side of the power supply. In such a -
virtually nearly impossible - case, the defective unit becomes a load for the other power supplies and the output
voltage can not be maintained any more.
This can only be avoided by utilizing decoupling diodes which are included in the decoupling module YR2.DIODE or
redundancy module YRM2.DIODE with alarm contacts.
Recommendations for building redundant power systems:
a)
Use separate input fuses for each power supply.
b)
Monitor the individual power supply units. A DC-ok lamp and a DC-ok contact is included in the redundancy
module YRM2.DIODE. This feature reports a faulty unit.
c)
When possible, connect each power supply to different phases or circuits.
26.9. D
AISY
C
HAINING OF
O
UTPUTS
Daisy chaining (jumping from one power supply output to the next) is allowed as long as the maximum current
through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block.
Fig. 26-8 Daisy chaining of outputs
Fig. 26-9 Using distribution terminals
Power
Supply
+ +
- -
Input
Power
Supply
+ +
- -
Input
Load
+
-
max 25A!
L N PE
Power
Supply
+ +
- -
L N PE
Power
Supply
+ +
- -
Load
+
-
Distribution
Terminals
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
20/21
26.10. S
ERIES
O
PERATION
The power supply can be put in series to increase the output voltage.
Fig. 26-10 Schematic for series operation
Instructions for use in series:
Earth
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
b)
It is possible to connect as many units in series as needed,
providing the sum of the output voltage does not exceed
150Vdc.
c)
Voltages with a potential above 60Vdc are not SELV any
more and can be dangerous. Such voltages must be installed
with a protection against touching.
d)
For serial operation use power supplies of the same type.
e)
Earthing of the output is required when the sum of the
output voltage is above 60Vdc.
f)
Keep an installation clearance of 15mm (left/right) between
two power supplies and avoid installing the power supplies
on top of each other.
Note: Avoid return voltage (e.g. from a decelerating motor or
battery) which is applied to the output terminals.
26.11. I
NDUCTIVE AND
C
APACITIVE
L
OADS
The unit is designed to supply any kind of load, including unlimited capacitive and inductive loads.
26.12. O
PERATION ON
T
WO
P
HASES
Fig. 26-11 Schematic for two phase operation
240V
+
15%
ma
x.
Fuse
L2
L1
L3
L
N
PE
Power Supply
AC
DC
internal
fused
Instructions for two phase operation:
a)
A phase to phase connection is allowed as long as the
supplying voltage is below 240V
+15%
.
b)
Use a fuse or a circuit breaker to protect the N input. The
N input is internally not protected and is in this case
connected to a hot wire.
Appropriate fuses or circuit breakers are specified in section 26.6
“External Input Protection”.
26.13. U
SE IN A
T
IGHTLY
S
EALED
E
NCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher
than outside. The inside temperature defines the ambient temperature for the power supply.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure:
Rittal Typ IP66 Box PK 9516 100, plastic, 110x180x165mm
Load:
24V, 3.4A; (=100%) load is placed outside the box
Input:
230Vac
Temperature inside enclosure:
41.3°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 25.1°C
Temperature rise:
16.2K
QS3.241
Q-Series
24V, 3.4A, S
INGLE
P
HASE
I
NPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
www.pulspower.com Phone +49 89 9278 0 Germany
21/21
26.14. M
OUNTING
O
RIENTATIONS
Mounting orientations other than input terminals on the bottom and output on the top require a reduction in
continuous output power or a limitation in the max. allowed ambient temperature. The amount of reduction
influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous
operation can be found below:
Curve A1
Recommended output current.
Curve A2
Max allowed output current (results approx. in half the lifetime expectancy of A1).
Fig. 26-12
Mounting
Orientation A
Standard
Orientation
Power
Supply
OUTPUT
INPUT
Output Current
0
10
20
30
40
60°C
0.7
2.1
2.8
3.5A
50
A1
Ambient Temperature
1.4
Fig. 26-13
Mounting
Orientation B
(Upside down)
Pow
er
Suppl
y
OUTP
UT
INPU
T
Output Current
0
10
20
30
40
60°C
0.7
2.1
2.8
3.5A
50
Ambient Temperature
1.4
A1
A2
Fig. 26-14
Mounting
Orientation C
(Table-top
mounting)
Output Current
0
10
20
30
40
60°C
0.7
2.1
2.8
3.5A
50
Ambient Temperature
1.4
A1
A2
Fig. 26-15
Mounting
Orientation D
(Horizontal cw)
Po
w
er
S
uppl
y
OUT
P
UT
INP
U
T
Output Current
0
10
20
30
40
60°C
0.7
2.1
2.8
3.5A
50
Ambient Temperature
1.4
A1
A2
Fig. 26-16
Mounting
Orientation E
(Horizontal ccw)
Po
w
er
S
uppl
y
OUT
P
UT
INP
U
T
Output Current
0
10
20
30
40
60°C
0.7
2.1
2.8
3.5A
50
Ambient Temperature
1.4
A1
A2